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These Sheet Pan Beef Fajitas are a quick, oven-baked way to enjoy tender seasoned steak, caramelized onions, and colorful bell peppers without needing a grill.
Everything cooks together on one pan, making this a simple, weeknight-friendly recipe with bold flavor and easy cleanup.
If you love sheet pan dinners that bring big flavor with minimal effort, you’ll also enjoy my Sheet Pan Chicken Fajitas, Sheet Pan Sausage and Veggies, and Ground Beef Sheet Pan Quesadillas—all delicious recipes that make dinnertime easier.
Why You’ll Love Sheet Pan Beef Fajitas
- One-pan convenience: Less cooking mess and fewer dishes to wash.
- Bold, classic fajita flavor: Chili powder, cumin, garlic, and paprika add depth and heat.
- Customizable: Serve with your favorite tortillas and toppings for a meal everyone can build their own way.
Ingredients
Find the full list of ingredients, amounts, and instructions in the recipe card at the bottom of this post.
- Beef Sirloin or Flank Steak: Thinly sliced for fast, tender steak cooking. You can also use skirt steak.
- Bell Peppers: Adds sweetness, color, and texture.
- Onion: Becomes soft and caramelized in the oven.
- Olive Oil: Helps everything roast beautifully.
- Fajita Spices: Chili powder, cumin, paprika, and garlic powder bring the heat and flavor. You can also use my homemade fajita seasoning.
How to Make Sheet Pan Beef Fajitas
Here are the step-by-step instructions for making this recipe:
Step 1: Preheat oven to 400°F (200°C). Line a baking sheet with parchment or foil.
Step 2: In a large bowl, toss sliced beef, bell peppers, onion, olive oil, chili powder, cumin, paprika, and garlic until evenly coated.
Step 3: Spread the mixture onto the prepared baking sheet in an even layer.
Step 4: Bake 20–25 minutes, stirring halfway, until beef is cooked and vegetables are tender.
Step 5: Warm tortillas in a skillet or microwave according to package instructions.
Step 6: Serve beef fajitas immediately with warmed tortillas and your favorite toppings such as homemade pico de gallo, mango black bean salsa, or with refried beans.
Tips for Success
- Slice beef against the grain for the most tender result.
- Add sliced jalapeños or red pepper flakes if you enjoy more heat.
- Use two pans if needed to avoid overcrowding and ensure good caramelization.
How to Store Sheet Pan Fajitas
Store leftover beef and vegetables in an airtight container in the fridge for up to 3 days. Reheat in a skillet or microwave.
Frequently Asked Questions
Yes—simply substitute sliced chicken breast or thighs
Absolutely. Corn tortillas bring a wonderful traditional flavor.
You don’t have to, but adding lime juice and a splash of oil ahead of time enhances tenderness.
More Easy Dinner Ideas
- French Onion Meatballs
- Chili Cornbread Casserole
- Skillet Lasagna
- Rotisserie Chicken Tacos
- Quinoa Stuffed Peppers
- Taco Stuffed Shells Recipe
If you make this recipe and enjoy it, please leave a comment with a 5-star recipe rating and let me know! Thank you!
Sheet Pan Beef Fajitas
Equipment
- Parchment paper or aluminum foil
Ingredients
- 1 lb beef sirloin or flank steak, thinly sliced
- 1 onion, sliced
- 1 red bell pepper, sliced
- 1 green bell pepper, sliced
- 2 tablespoons olive oil
- 2 teaspoons chili powder
- 1 teaspoon ground cumin
- 1 teaspoon paprika
- 2 cloves garlic, minced
- 8 small flour tortillas
Optional toppings
- shredded cheese
- sour cream
- sliced avocado
- fresh cilantro, chopped
Instructions
- Preheat the oven to 400°F (200°C).
- In a large bowl, toss together the beef slices, sliced onion, sliced bell peppers, olive oil, and fajita seasoning until everything is evenly coated.
- Spread the beef and vegetable mixture evenly onto a large baking sheet lined with parchment paper or aluminum foil.
- Bake in the preheated oven for about 20-25 minutes, or until the beef is cooked through and the vegetables are tender, stirring halfway through cooking.
- While the beef and vegetables are baking, warm the flour tortillas in a skillet or microwave according to package instructions.
- Once the beef and vegetables are cooked, remove them from the oven and serve immediately with warmed tortillas and optional toppings.
Notes
- Slice beef against the grain for the most tender result.
- Add sliced jalapeños or red pepper flakes if you enjoy more heat.
- Use two pans if needed to avoid overcrowding and ensure good caramelization.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
